MA-i系列 功率放大器

Amplificateurs de puissance

Power Amplifiers

Amplificadores de potencia

5 Troubleshooting

5 Diagnostic de panne

5 故障排除

5 Solución de problemas

READY

READY

READY

CONDITION: Ready indicator is bright green.

• Amplifi er is ready to pass a signal.

CONDITION: Ready indicator is dim green.

• Onset of compression.

CONDITION: Ready indicator is off.

Thermal failure. The amplifi er is too hot for safe operation. Allow amplifi er to cool. Check for loads less than 2 ohms, and for excessive input levels. Check for proper ventilation.

CONDITION : L’indicateur prêt est verte vif.

• L’amplificateur est prêt à émettre un signal.

CONDITION : L’indicateur prêt est verte pâle.

• Début de la compression.

CONDITION : L’indicateur prêt est éteint.

Défaillance thermique. L’amplificateur est trop chaud pour assurer un fonctionnement en toute sécurité. Laissez refroidir l’amplifi cateur. Vérifi ez les charges inférieures à 2 ohms et les niveaux d’entrée excessifs. Vérifiez que la ventilation est correcte.

条件:就绪指示灯为亮绿色。

放大器准备通过信号。

条件:就绪指示灯为暗绿色。

开始压缩。

条件:就绪指示灯关闭。

热故障。放大器过热,无法安全 工作。让放大器冷却。检查低于 2 ohms 的负载以及过高的输入电 平。检查通风是否正常。

CONDICIÓN: El indicador Preparado está verde brillante.

El amplificador está listo para dejar pasar una señal.

CONDICIÓN: El indicador Preparado está verde tenue.

• Inicio de compresión.

CONDICIÓN: El indicador Preparado está apagado.

Falla térmica. El amplifi cador está demasiado caliente para operar de forma segura. Deje que el amplifi cador se enfríe. Revise si la carga es menor a 2 ohms y si hay niveles excesivos de entrada. Revise que haya una ventilación adecuada.

CH2

5

 

4

READY

3

 

2

SIGNAL

1

 

0

6 7

8

9

POWER

10

BRIDGE

11

DATA

 

12

CONDITION: Power switch is on, all other channel indica- tors off.

POSSIBLE REASON:

The amplifier channel has stopped op- erating. Refer the unit to an authorized Crown Service Center.

CONDITION : L’interrupteur d’alimentation est sous tension, tous les autres indicateurs du canal sont hors tension.

RAISON POSSIBLE :

Le canal de l’amplificateur ne fonctionne plus. Reportez l’unité à un Centre d’entretien agréé par Crown.

条件:电源开关打开,其他 所有的声道指示灯关闭。

可能原因:

放大器声道停止工作。 把设备带到授权的皇冠 音响公司维修中心进行 维修。

CONDICIÓN El interruptor de encendido está activado, todos los demás indicadores de canal están apagados.

RAZÓN POSIBLE:

El canal del amplificador ha dejado de operar. Remita la unidad a un Centro Autorizado de Servicio Crown.

 

CONDITION: Distorted sound. Signal

CONDITION : Son distordu. L’indicateur 条件:声音变形。翠绿色信号指示灯

 

SIGNAL

indicator is flashing bright green.

du signal clignote en vert vif.

闪烁。

 

RAISON POSSIBLE :

 

 

POSSIBLE REASON:

可能原因:

 

 

CONDICIÓN: Sonido distorsionado. El indicador de señal verde brillante está parpadeando.

RAZÓN POSIBLE:

Load is wired incorrectly or Output Mode switch in LCD-screen menu is set incorrectly. Check both.

Input is overloaded by a signal level that is too high. Turn down your amplifier level controls (Encoders), or turn down the input signal, until the clip light goes out.

Note: If the signal sounds distorted even though the Clip LED is off, the input signal may be distorted before it reaches the amplifier input. Check gain staging and output levels of the mixer or preamp.

La charge est incorrectement raccordée ou l’interrupteur de mode sortie n’est pas correctement défi ni dans le menu de l’écran LCD. Vérifi ez les deux paramètres.

L’entrée est surchargée par un niveau de signal trop élevé. Baissez les commandes de niveau de votre amplificateur (Encodeurs) ou baissez le signal d’entrée jusqu’à ce que la lumière d’écrêtage s’éteigne.

Note : Si les sons du signal sont distordus, même si la DEL d’écrêtage est éteinte, le signal d’entrée peut être distordu avant qu’il atteigne l’entrée de l’amplificateur. Vérifi ez les étapes de gain et les niveaux de sortie de la console de mixage ou du préamplifi cateur.

负载配线不当,或 LCD 屏幕菜单中 的输出模式开关设置不当。检查以上 两个原因。

信号电平过高,输入负载过大。将 放大器电平控制调小(编码器),或 将降低输入信号,直至削波灯熄灭。

注意:如果削波 LED 灯关闭后,信号 声依然扭曲,则信号在到达放大器输入 端之前就已经发生变形。检查增益级与 混音器或前置放大器的输出电平。

La carga está conectada incorrectamente o el interruptor de Modo de salida (Mode Output) en el menú de la pantalla LCD está confi gurado de modo incorrecto. Revise ambos.

La entrada está sobrecargada por un nivel de señal demasiado alto. Disminuya los controles de nivel de su amplificador o baje la señal de entrada hasta que se apague la luz de recorte.

Nota: Si la señal suena distorsionada aun cuando el LED de saturación esté apagado, la señal puede estar distorsionada de origen antes de llegar a la entrada del amplifi cador Revise la etapa de ganancia y los niveles de salida de la mezcladora o el preamplifi cador.

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page 36

Operation Manual

Mode d’emploi

操作手册 Manual de Operación

Page 36
Image 36
Crown Audio MA-9000i, MA-5000i, MA-12000i Condition Ready indicator is bright green, Condition Ready indicator is dim green

MA-12000i, MA-9000i, i Series, MA-5000i specifications

Crown Audio is a renowned name in the professional sound industry, known for pushing the boundaries of audio engineering. Among their distinguished lineup, the MA series provides a powerful solution for audio amplification in various settings, including live performances, installations, and broadcast applications.

The Crown Audio MA-5000i is a robust amplifier specifically designed to deliver high output power and exceptional audio fidelity. With a power rating of 5000 watts, it is capable of driving large sound systems with ease. A notable feature is its i.Series technology, which integrates advanced DSP (Digital Signal Processing) capabilities, allowing users to customize settings, apply crossovers, and utilize EQ adjustments to enhance the audio experience. The MA-5000i also includes an intelligent cooling system, which ensures the amplifier operates efficiently even under heavy loads, providing reliability for long-term use.

Next in the lineup is the Crown Audio MA-9000i, packing a punch with its 9000-watt output capability. This model stands out due to its dual-channel architecture, enabling users to deliver performance to multiple speakers or zones without compromising sound quality. The MA-9000i features an impressive input sensitivity adjustment, allowing for seamless integration with various audio sources. Also, like its predecessor, it comes with comprehensive DSP processing tools that facilitate real-time monitoring and adjustments.

Crown's MA-12000i takes it to the next level with a staggering output capacity of 12,000 watts. This amplifier is engineered for the most demanding audio environments, offering not only power but also outstanding thermal management to maintain performance stability. The MA-12000i employs the patented G0600 output technology, which enhances overall efficiency, reducing heat and prolonging the lifespan of the equipment. Its advanced feature set includes selectable high-pass and low-pass filters, which aid in crafting the perfect audio profile for varying applications.

All models in the MA series share the same commitment to durability and quality. Constructed with high-grade components, these amplifiers are designed to withstand the rigors of touring and installation. The intuitive front panel with clear meter displays and ergonomic controls ensures ease of use for audio professionals. Additionally, built-in network capabilities allow for remote monitoring and control, facilitating a seamless integration into modern audio setups.

In summary, the Crown Audio MA-5000i, MA-9000i, and MA-12000i amplifiers exemplify the pinnacle of audio technology, catering to a wide range of professional applications while ensuring exceptional sound quality, reliability, and performance.